4951220

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{881}}^1$

素因数の和:1171

約数の個数: 24

約数和(自身を含む): 10446408

約数和(自身を除く): 5495188

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 881, 1124, 1405, 1762, 2810, 3524, 4405, 5620, 8810, 17620, 247561, 495122, 990244, 1237805, 2475610, 4951220]

約数ペア:

[(1, 4951220), (2, 2475610), (4, 1237805), (5, 990244), (10, 495122), (20, 247561), (281, 17620), (562, 8810), (881, 5620), (1124, 4405), (1405, 3524), (1762, 2810)]